11820308 has 12 divisors (see below), whose sum is σ = 20710452. Its totient is φ = 5903040.

The previous prime is 11820301. The next prime is 11820329. The reversal of 11820308 is 80302811.

It can be written as a sum of positive squares in 2 ways, for example, as 10252804 + 1567504 = 3202^2 + 1252^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11820301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166 + ... + 6402.

It is an arithmetic number, because the mean of its divisors is an integer number (1725871).

Almost surely, 2^11820308 is an apocalyptic number.

It is an amenable number.

11820308 is a deficient number, since it is larger than the sum of its proper divisors (8890144).

11820308 is a wasteful number, since it uses less digits than its factorization.

11820308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 11820308 is about 3438.0674804314. The cubic root of 11820308 is about 227.7943410698.

The spelling of 11820308 in words is "eleven million, eight hundred twenty thousand, three hundred eight".